diff options
Diffstat (limited to 'utility.c')
| -rw-r--r-- | utility.c | 1887 |
1 files changed, 0 insertions, 1887 deletions
diff --git a/utility.c b/utility.c deleted file mode 100644 index 8408a6c..0000000 --- a/utility.c +++ /dev/null @@ -1,1887 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Utility routines. - * - * Copyright (C) tons of folks. Tracking down who wrote what - * isn't something I'm going to worry about... If you wrote something - * here, please feel free to acknowledge your work. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Based in part on code from sash, Copyright (c) 1999 by David I. Bell - * Permission has been granted to redistribute this code under the GPL. - * - */ - -#include <stdio.h> -#include <string.h> -#include <errno.h> -#include <fcntl.h> -#include <dirent.h> -#include <time.h> -#include <utime.h> -#include <unistd.h> -#include <ctype.h> -#include <stdlib.h> -#include <limits.h> -#include <stdarg.h> -#include <sys/ioctl.h> -#include <sys/utsname.h> /* for uname(2) */ - -#include "busybox.h" -#if defined (BB_CHMOD_CHOWN_CHGRP) \ - || defined (BB_CP_MV) \ - || defined (BB_FIND) \ - || defined (BB_INSMOD) \ - || defined (BB_LS) \ - || defined (BB_RM) \ - || defined (BB_TAR) -/* same conditions as recursive_action */ -#define bb_need_name_too_long -#endif -#define bb_need_memory_exhausted -#define bb_need_full_version -#define BB_DECLARE_EXTERN -#include "messages.c" - -#include "pwd_grp/pwd.h" -#include "pwd_grp/grp.h" - -/* for the _syscall() macros */ -#include <sys/syscall.h> -#include <linux/unistd.h> - -/* Busybox mount uses either /proc/mounts or /dev/mtab to - * get the list of currently mounted filesystems */ -#if defined BB_MOUNT || defined BB_UMOUNT || defined BB_DF -# if defined BB_MTAB -const char mtab_file[] = "/etc/mtab"; -# else -# if defined BB_FEATURE_USE_DEVPS_PATCH -const char mtab_file[] = "/dev/mtab"; -# else -const char mtab_file[] = "/proc/mounts"; -# endif -# endif -#endif - -#if defined(BB_KLOGD) || defined(BB_LOGGER) -#include <syslog.h> -#endif - -static struct BB_applet *applet_using; - -extern void show_usage(void) -{ - const char *format_string; - const char *usage_string = usage_messages; - int i; - - for (i = applet_using - applets; i > 0; ) { - if (!*usage_string++) { - --i; - } - } - format_string = "%s\n\nUsage: %s %s\n\n"; - if(*usage_string == 0) - format_string = "%s\n\nNo help available.\n\n"; - fprintf(stderr, format_string, - full_version, applet_using->name, usage_string); - exit(EXIT_FAILURE); -} - - -static void verror_msg(const char *s, va_list p) -{ - fflush(stdout); - fprintf(stderr, "%s: ", applet_name); - vfprintf(stderr, s, p); -} - -extern void error_msg(const char *s, ...) -{ - va_list p; - - va_start(p, s); - verror_msg(s, p); - va_end(p); - putc('\n', stderr); -} - -extern void error_msg_and_die(const char *s, ...) -{ - va_list p; - - va_start(p, s); - verror_msg(s, p); - va_end(p); - putc('\n', stderr); - exit(EXIT_FAILURE); -} - -static void vperror_msg(const char *s, va_list p) -{ - int err=errno; - if(s == 0) s = ""; - verror_msg(s, p); - if (*s) s = ": "; - fprintf(stderr, "%s%s\n", s, strerror(err)); -} - -extern void perror_msg(const char *s, ...) -{ - va_list p; - - va_start(p, s); - vperror_msg(s, p); - va_end(p); -} - -extern void perror_msg_and_die(const char *s, ...) -{ - va_list p; - - va_start(p, s); - vperror_msg(s, p); - va_end(p); - exit(EXIT_FAILURE); -} - -#if defined BB_INIT || defined BB_MKSWAP || defined BB_MOUNT || defined BB_NFSMOUNT || defined BB_FEATURE_IFCONFIG_STATUS -/* Returns kernel version encoded as major*65536 + minor*256 + patch, - * so, for example, to check if the kernel is greater than 2.2.11: - * if (get_kernel_revision() <= 2*65536+2*256+11) { <stuff> } - */ -extern int get_kernel_revision(void) -{ - struct utsname name; - char *s; - int i, r; - - if (uname(&name) == -1) { - perror_msg("cannot get system information"); - return (0); - } - - s = name.release; - r = 0; - for (i=0 ; i<3 ; i++) { - r = r * 256 + atoi(strtok(s, ".")); - s = NULL; - } - return r; -} -#endif /* BB_INIT */ - - - -#if defined BB_FREE || defined BB_INIT || defined BB_UNAME || defined BB_UPTIME -_syscall1(int, sysinfo, struct sysinfo *, info); -#endif /* BB_INIT */ - -#if defined BB_MOUNT || defined BB_UMOUNT - -/* Include our own version of <sys/mount.h>, since libc5 doesn't - * know about umount2 */ -extern _syscall1(int, umount, const char *, special_file); -extern _syscall5(int, mount, const char *, special_file, const char *, dir, - const char *, fstype, unsigned long int, rwflag, const void *, data); -#ifndef __NR_umount2 -# warning This kernel does not support the umount2 syscall -# warning The umount2 system call is being stubbed out... - int umount2(const char * special_file, int flags) - { - /* BusyBox was compiled against a kernel that did not support - * the umount2 system call. To make this application work, - * you will need to recompile with a kernel supporting the - * umount2 system call. - */ - fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n"); - fprintf(stderr, "with a kernel supporting the umount2 system call. -Erik\n\n"); - errno=ENOSYS; - return -1; - } -# else - extern _syscall2(int, umount2, const char *, special_file, int, flags); -# endif -#endif - - - -#if defined BB_FEATURE_NEW_MODULE_INTERFACE && ( defined BB_INSMOD || defined BB_LSMOD ) -#ifndef __NR_query_module -static const int __NR_query_module = 167; -#endif -_syscall5(int, query_module, const char *, name, int, which, - void *, buf, size_t, bufsize, size_t*, ret); -#endif - - -#if defined (BB_CP_MV) || defined (BB_DU) - -#define HASH_SIZE 311 /* Should be prime */ -#define hash_inode(i) ((i) % HASH_SIZE) - -static ino_dev_hashtable_bucket_t *ino_dev_hashtable[HASH_SIZE]; - -/* - * Return 1 if statbuf->st_ino && statbuf->st_dev are recorded in - * `ino_dev_hashtable', else return 0 - * - * If NAME is a non-NULL pointer to a character pointer, and there is - * a match, then set *NAME to the value of the name slot in that - * bucket. - */ -int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name) -{ - ino_dev_hashtable_bucket_t *bucket; - - bucket = ino_dev_hashtable[hash_inode(statbuf->st_ino)]; - while (bucket != NULL) { - if ((bucket->ino == statbuf->st_ino) && - (bucket->dev == statbuf->st_dev)) - { - if (name) *name = bucket->name; - return 1; - } - bucket = bucket->next; - } - return 0; -} - -/* Add statbuf to statbuf hash table */ -void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name) -{ - int i; - size_t s; - ino_dev_hashtable_bucket_t *bucket; - - i = hash_inode(statbuf->st_ino); - s = name ? strlen(name) : 0; - bucket = xmalloc(sizeof(ino_dev_hashtable_bucket_t) + s); - bucket->ino = statbuf->st_ino; - bucket->dev = statbuf->st_dev; - if (name) - strcpy(bucket->name, name); - else - bucket->name[0] = '\0'; - bucket->next = ino_dev_hashtable[i]; - ino_dev_hashtable[i] = bucket; -} - -/* Clear statbuf hash table */ -void reset_ino_dev_hashtable(void) -{ - int i; - ino_dev_hashtable_bucket_t *bucket; - - for (i = 0; i < HASH_SIZE; i++) { - while (ino_dev_hashtable[i] != NULL) { - bucket = ino_dev_hashtable[i]->next; - free(ino_dev_hashtable[i]); - ino_dev_hashtable[i] = bucket; - } - } -} - -#endif /* BB_CP_MV || BB_DU */ - -#if defined (BB_CP_MV) || defined (BB_DU) || defined (BB_LN) || defined (BB_DPKG_DEB) -/* - * Return TRUE if a fileName is a directory. - * Nonexistant files return FALSE. - */ -int is_directory(const char *fileName, const int followLinks, struct stat *statBuf) -{ - int status; - int didMalloc = 0; - - if (statBuf == NULL) { - statBuf = (struct stat *)xmalloc(sizeof(struct stat)); - ++didMalloc; - } - - if (followLinks == TRUE) - status = stat(fileName, statBuf); - else - status = lstat(fileName, statBuf); - - if (status < 0 || !(S_ISDIR(statBuf->st_mode))) { - status = FALSE; - } - else status = TRUE; - - if (didMalloc) { - free(statBuf); - statBuf = NULL; - } - return status; -} -#endif - -#if defined BB_AR || defined BB_CP_MV -/* - * Copy chunksize bytes between two file descriptors - */ -int copy_file_chunk(int srcfd, int dstfd, size_t chunksize) -{ - size_t size; - char buffer[BUFSIZ]; /* BUFSIZ is declared in stdio.h */ - - while (chunksize > 0) { - if (chunksize > BUFSIZ) - size = BUFSIZ; - else - size = chunksize; - if (full_write(dstfd, buffer, full_read(srcfd, buffer, size)) < size) - return(FALSE); - chunksize -= size; - } - return (TRUE); -} -#endif - - -#if defined (BB_CP_MV) || defined BB_DPKG -/* - * Copy one file to another, while possibly preserving its modes, times, and - * modes. Returns TRUE if successful, or FALSE on a failure with an error - * message output. (Failure is not indicated if attributes cannot be set.) - * -Erik Andersen - */ -int -copy_file(const char *srcName, const char *destName, - int setModes, int followLinks, int forceFlag) -{ - int rfd; - int wfd; - int status; - struct stat srcStatBuf; - struct stat dstStatBuf; - struct utimbuf times; - - if (followLinks == TRUE) - status = stat(srcName, &srcStatBuf); - else - status = lstat(srcName, &srcStatBuf); - - if (status < 0) { - perror_msg("%s", srcName); - return FALSE; - } - - if (followLinks == TRUE) - status = stat(destName, &dstStatBuf); - else - status = lstat(destName, &dstStatBuf); - - if (status < 0 || forceFlag==TRUE) { - unlink(destName); - dstStatBuf.st_ino = -1; - dstStatBuf.st_dev = -1; - } - - if ((srcStatBuf.st_dev == dstStatBuf.st_dev) && - (srcStatBuf.st_ino == dstStatBuf.st_ino)) { - error_msg("Copying file \"%s\" to itself", srcName); - return FALSE; - } - - if (S_ISDIR(srcStatBuf.st_mode)) { - //fprintf(stderr, "copying directory %s to %s\n", srcName, destName); - /* Make sure the directory is writable */ - status = mkdir(destName, 0777777 ^ umask(0)); - if (status < 0 && errno != EEXIST) { - perror_msg("%s", destName); - return FALSE; - } - } else if (S_ISLNK(srcStatBuf.st_mode)) { - char link_val[BUFSIZ + 1]; - int link_size; - - //fprintf(stderr, "copying link %s to %s\n", srcName, destName); - /* Warning: This could possibly truncate silently, to BUFSIZ chars */ - link_size = readlink(srcName, &link_val[0], BUFSIZ); - if (link_size < 0) { - perror_msg("%s", srcName); - return FALSE; - } - link_val[link_size] = '\0'; - status = symlink(link_val, destName); - if (status < 0) { - perror_msg("%s", destName); - return FALSE; - } -#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) - if (setModes == TRUE) { - /* Try to set owner, but fail silently like GNU cp */ - lchown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid); - } -#endif - return TRUE; - } else if (S_ISFIFO(srcStatBuf.st_mode)) { - //fprintf(stderr, "copying fifo %s to %s\n", srcName, destName); - if (mkfifo(destName, 0644) < 0) { - perror_msg("%s", destName); - return FALSE; - } - } else if (S_ISBLK(srcStatBuf.st_mode) || S_ISCHR(srcStatBuf.st_mode) - || S_ISSOCK(srcStatBuf.st_mode)) { - //fprintf(stderr, "copying soc, blk, or chr %s to %s\n", srcName, destName); - if (mknod(destName, srcStatBuf.st_mode, srcStatBuf.st_rdev) < 0) { - perror_msg("%s", destName); - return FALSE; - } - } else if (S_ISREG(srcStatBuf.st_mode)) { - //fprintf(stderr, "copying regular file %s to %s\n", srcName, destName); - rfd = open(srcName, O_RDONLY); - if (rfd < 0) { - perror_msg("%s", srcName); - return FALSE; - } - - wfd = open(destName, O_WRONLY | O_CREAT | O_TRUNC, - srcStatBuf.st_mode); - if (wfd < 0) { - perror_msg("%s", destName); - close(rfd); - return FALSE; - } - - if (copy_file_chunk(rfd, wfd, srcStatBuf.st_size)==FALSE) - goto error_exit; - - close(rfd); - if (close(wfd) < 0) { - return FALSE; - } - } - - if (setModes == TRUE) { - /* This is fine, since symlinks never get here */ - if (chown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid) < 0) - perror_msg_and_die("%s", destName); - if (chmod(destName, srcStatBuf.st_mode) < 0) - perror_msg_and_die("%s", destName); - times.actime = srcStatBuf.st_atime; - times.modtime = srcStatBuf.st_mtime; - if (utime(destName, ×) < 0) - perror_msg_and_die("%s", destName); - } - - return TRUE; - - error_exit: - perror_msg("%s", destName); - close(rfd); - close(wfd); - - return FALSE; -} -#endif /* BB_CP_MV */ - - - -#if defined BB_TAR || defined BB_LS ||defined BB_AR - -#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f) -#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)]) - -/* The special bits. If set, display SMODE0/1 instead of MODE0/1 */ -static const mode_t SBIT[] = { - 0, 0, S_ISUID, - 0, 0, S_ISGID, - 0, 0, S_ISVTX -}; - -/* The 9 mode bits to test */ -static const mode_t MBIT[] = { - S_IRUSR, S_IWUSR, S_IXUSR, - S_IRGRP, S_IWGRP, S_IXGRP, - S_IROTH, S_IWOTH, S_IXOTH -}; - -static const char MODE1[] = "rwxrwxrwx"; -static const char MODE0[] = "---------"; -static const char SMODE1[] = "..s..s..t"; -static const char SMODE0[] = "..S..S..T"; - -/* - * Return the standard ls-like mode string from a file mode. - * This is static and so is overwritten on each call. - */ -const char *mode_string(int mode) -{ - static char buf[12]; - - int i; - - buf[0] = TYPECHAR(mode); - for (i = 0; i < 9; i++) { - if (mode & SBIT[i]) - buf[i + 1] = (mode & MBIT[i]) ? SMODE1[i] : SMODE0[i]; - else - buf[i + 1] = (mode & MBIT[i]) ? MODE1[i] : MODE0[i]; - } - return buf; -} -#endif /* BB_TAR || BB_LS */ - - -#if defined BB_TAR || defined BB_AR -/* - * Return the standard ls-like time string from a time_t - * This is static and so is overwritten on each call. - */ -const char *time_string(time_t timeVal) -{ - time_t now; - char *str; - static char buf[26]; - - time(&now); - - str = ctime(&timeVal); - - strcpy(buf, &str[4]); - buf[12] = '\0'; - - if ((timeVal > now) || (timeVal < now - 365 * 24 * 60 * 60L)) { - strcpy(&buf[7], &str[20]); - buf[11] = '\0'; - } - - return buf; -} -#endif /* BB_TAR || BB_AR */ - -#if defined BB_DD || defined BB_NC || defined BB_TAIL || defined BB_TAR || defined BB_AR || defined BB_CP_MV -/* - * Write all of the supplied buffer out to a file. - * This does multiple writes as necessary. - * Returns the amount written, or -1 on an error. - */ -int full_write(int fd, const char *buf, int len) -{ - int cc; - int total; - - total = 0; - - while (len > 0) { - cc = write(fd, buf, len); - - if (cc < 0) - return -1; - - buf += cc; - total += cc; - len -= cc; - } - - return total; -} -#endif - -#if defined BB_AR || defined BB_CP_MV || defined BB_SH || defined BB_TAR -/* - * Read all of the supplied buffer from a file. - * This does multiple reads as necessary. - * Returns the amount read, or -1 on an error. - * A short read is returned on an end of file. - */ -int full_read(int fd, char *buf, int len) -{ - int cc; - int total; - - total = 0; - - while (len > 0) { - cc = read(fd, buf, len); - - if (cc < 0) - return -1; - - if (cc == 0) - break; - - buf += cc; - total += cc; - len -= cc; - } - - return total; -} -#endif /* BB_TAR || BB_TAIL || BB_AR || BB_SH */ - - -#if defined (BB_CHMOD_CHOWN_CHGRP) \ - || defined (BB_CP_MV) \ - || defined (BB_FIND) \ - || defined (BB_INSMOD) \ - || defined (BB_LS) \ - || defined (BB_RM) \ - || defined (BB_TAR) - -/* - * Walk down all the directories under the specified - * location, and do something (something specified - * by the fileAction and dirAction function pointers). - * - * Unfortunately, while nftw(3) could replace this and reduce - * code size a bit, nftw() wasn't supported before GNU libc 2.1, - * and so isn't sufficiently portable to take over since glibc2.1 - * is so stinking huge. - */ -int recursive_action(const char *fileName, - int recurse, int followLinks, int depthFirst, - int (*fileAction) (const char *fileName, - struct stat * statbuf, - void* userData), - int (*dirAction) (const char *fileName, - struct stat * statbuf, - void* userData), - void* userData) -{ - int status; - struct stat statbuf; - struct dirent *next; - - if (followLinks == TRUE) - status = stat(fileName, &statbuf); - else - status = lstat(fileName, &statbuf); - - if (status < 0) { -#ifdef BB_DEBUG_PRINT_SCAFFOLD - fprintf(stderr, - "status=%d followLinks=%d TRUE=%d\n", - status, followLinks, TRUE); -#endif - perror_msg("%s", fileName); - return FALSE; - } - - if ((followLinks == FALSE) && (S_ISLNK(statbuf.st_mode))) { - if (fileAction == NULL) - return TRUE; - else - return fileAction(fileName, &statbuf, userData); - } - - if (recurse == FALSE) { - if (S_ISDIR(statbuf.st_mode)) { - if (dirAction != NULL) - return (dirAction(fileName, &statbuf, userData)); - else - return TRUE; - } - } - - if (S_ISDIR(statbuf.st_mode)) { - DIR *dir; - - if (dirAction != NULL && depthFirst == FALSE) { - status = dirAction(fileName, &statbuf, userData); - if (status == FALSE) { - perror_msg("%s", fileName); - return FALSE; - } else if (status == SKIP) - return TRUE; - } - dir = opendir(fileName); - if (!dir) { - perror_msg("%s", fileName); - return FALSE; - } - status = TRUE; - while ((next = readdir(dir)) != NULL) { - char nextFile[PATH_MAX]; - - if ((strcmp(next->d_name, "..") == 0) - || (strcmp(next->d_name, ".") == 0)) { - continue; - } - if (strlen(fileName) + strlen(next->d_name) + 1 > PATH_MAX) { - error_msg(name_too_long); - return FALSE; - } - memset(nextFile, 0, sizeof(nextFile)); - if (fileName[strlen(fileName)-1] == '/') - sprintf(nextFile, "%s%s", fileName, next->d_name); - else - sprintf(nextFile, "%s/%s", fileName, next->d_name); - if (recursive_action(nextFile, TRUE, followLinks, depthFirst, - fileAction, dirAction, userData) == FALSE) { - status = FALSE; - } - } - closedir(dir); - if (dirAction != NULL && depthFirst == TRUE) { - if (dirAction(fileName, &statbuf, userData) == FALSE) { - perror_msg("%s", fileName); - return FALSE; - } - } - if (status == FALSE) - return FALSE; - } else { - if (fileAction == NULL) - return TRUE; - else - return fileAction(fileName, &statbuf, userData); - } - return TRUE; -} - -#endif /* BB_CHMOD_CHOWN_CHGRP || BB_CP_MV || BB_FIND || BB_LS || BB_INSMOD */ - - - -#if defined (BB_TAR) || defined (BB_MKDIR) -/* - * Attempt to create the directories along the specified path, except for - * the final component. The mode is given for the final directory only, - * while all previous ones get default protections. Errors are not reported - * here, as failures to restore files can be reported later. - */ -extern int create_path(const char *name, int mode) -{ - char *cp; - char *cpOld; - char buf[BUFSIZ + 1]; - int retVal = 0; - - strcpy(buf, name); - for (cp = buf; *cp == '/'; cp++); - cp = strchr(cp, '/'); - while (cp) { - cpOld = cp; - cp = strchr(cp + 1, '/'); - *cpOld = '\0'; - retVal = mkdir(buf, cp ? 0777 : mode); - if (retVal != 0 && errno != EEXIST) { - perror_msg("%s", buf); - return FALSE; - } - *cpOld = '/'; - } - return TRUE; -} -#endif /* BB_TAR || BB_MKDIR */ - - - -#if defined (BB_CHMOD_CHOWN_CHGRP) || defined (BB_MKDIR) \ - || defined (BB_MKFIFO) || defined (BB_MKNOD) || defined (BB_AR) -/* [ugoa]{+|-|=}[rwxst] */ - -extern int parse_mode(const char *s, mode_t * theMode) -{ - static const mode_t group_set[] = { - S_ISUID | S_IRWXU, /* u */ - S_ISGID | S_IRWXG, /* g */ - S_IRWXO, /* o */ - S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO /* a */ - }; - - static const mode_t mode_set[] = { - S_IRUSR | S_IRGRP | S_IROTH, /* r */ - S_IWUSR | S_IWGRP | S_IWOTH, /* w */ - S_IXUSR | S_IXGRP | S_IXOTH, /* x */ - S_ISUID | S_ISGID, /* s */ - S_ISVTX /* t */ - }; - - static const char group_string[] = "ugoa"; - static const char mode_string[] = "rwxst"; - - const char *p; - - mode_t andMode = - S_ISVTX | S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO; - mode_t orMode = 0; - mode_t mode; - mode_t groups; - char type; - char c; - - if (s==NULL) { - return (FALSE); - } - - do { - mode = 0; - groups = 0; - NEXT_GROUP: - if ((c = *s++) == '\0') { - return -1; - } - for (p=group_string ; *p ; p++) { - if (*p == c) { - groups |= group_set[(int)(p-group_string)]; - goto NEXT_GROUP; - } - } - switch (c) { - case '=': - case '+': - case '-': - type = c; - if (groups == 0) { /* The default is "all" */ - groups |= S_ISUID | S_ISGID | S_ISVTX - | S_IRWXU | S_IRWXG | S_IRWXO; - } - break; - default: - if ((c < '0') || (c > '7') || (mode | groups)) { - return (FALSE); - } else { - *theMode = strtol(--s, NULL, 8); - return (TRUE); - } - } - - NEXT_MODE: - if (((c = *s++) != '\0') && (c != ',')) { - for (p=mode_string ; *p ; p++) { - if (*p == c) { - mode |= mode_set[(int)(p-mode_string)]; - goto NEXT_MODE; - } - } - break; /* We're done so break out of loop.*/ - } - switch (type) { - case '=': - andMode &= ~(groups); /* Now fall through. */ - case '+': - orMode |= mode & groups; - break; - case '-': - andMode &= ~(mode & groups); - orMode &= ~(mode & groups); - break; - } - } while (c == ','); - - *theMode &= andMode; - *theMode |= orMode; - - return TRUE; -} - -#endif -/* BB_CHMOD_CHOWN_CHGRP || BB_MKDIR || BB_MKFIFO || BB_MKNOD */ - - - - - -#if defined BB_CHMOD_CHOWN_CHGRP || defined BB_PS || defined BB_LS \ - || defined BB_TAR || defined BB_ID || defined BB_LOGGER \ - || defined BB_LOGNAME || defined BB_WHOAMI || defined BB_SH - -#if defined BB_CHMOD_CHOWN_CHGRP || defined BB_ID -/* returns a uid given a username */ -long my_getpwnam(const char *name) -{ - struct passwd *myuser; - - myuser = getpwnam(name); - if (myuser==NULL) - error_msg_and_die("unknown user name: %s", name); - - return myuser->pw_uid; -} - -/* returns a gid given a group name */ -long my_getgrnam(const char *name) -{ - struct group *mygroup; - - mygroup = getgrnam(name); - if (mygroup==NULL) - error_msg_and_die("unknown group name: %s", name); - - return (mygroup->gr_gid); -} -#endif - -/* gets a username given a uid */ -void my_getpwuid(char *name, long uid) -{ - struct passwd *myuser; - - myuser = getpwuid(uid); - if (myuser==NULL) - sprintf(name, "%-8ld ", (long)uid); - else - strcpy(name, myuser->pw_name); -} - -/* gets a groupname given a gid */ -void my_getgrgid(char *group, long gid) -{ - struct group *mygroup; - - mygroup = getgrgid(gid); - if (mygroup==NULL) - sprintf(group, "%-8ld ", (long)gid); - else - strcpy(group, mygroup->gr_name); -} - -#if defined BB_ID -/* gets a gid given a user name */ -long my_getpwnamegid(const char *name) -{ - struct group *mygroup; - struct passwd *myuser; - - myuser=getpwnam(name); - if (myuser==NULL) - error_msg_and_die("unknown user name: %s", name); - - mygroup = getgrgid(myuser->pw_gid); - if (mygroup==NULL) - error_msg_and_die("unknown gid %ld", (long)myuser->pw_gid); - - return mygroup->gr_gid; -} -#endif /* BB_ID */ -#endif - /* BB_CHMOD_CHOWN_CHGRP || BB_PS || BB_LS || BB_TAR \ - || BB_ID || BB_LOGGER || BB_LOGNAME || BB_WHOAMI */ - - -#if (defined BB_CHVT) || (defined BB_DEALLOCVT) || (defined BB_SETKEYCODES) - -/* From <linux/kd.h> */ -static const int KDGKBTYPE = 0x4B33; /* get keyboard type */ -static const int KB_84 = 0x01; -static const int KB_101 = 0x02; /* this is what we always answer */ - -int is_a_console(int fd) -{ - char arg; - - arg = 0; - return (ioctl(fd, KDGKBTYPE, &arg) == 0 - && ((arg == KB_101) || (arg == KB_84))); -} - -static int open_a_console(char *fnam) -{ - int fd; - - /* try read-only */ - fd = open(fnam, O_RDWR); - - /* if failed, try read-only */ - if (fd < 0 && errno == EACCES) - fd = open(fnam, O_RDONLY); - - /* if failed, try write-only */ - if (fd < 0 && errno == EACCES) - fd = open(fnam, O_WRONLY); - - /* if failed, fail */ - if (fd < 0) - return -1; - - /* if not a console, fail */ - if (!is_a_console(fd)) { - close(fd); - return -1; - } - - /* success */ - return fd; -} - -/* - * Get an fd for use with kbd/console ioctls. - * We try several things because opening /dev/console will fail - * if someone else used X (which does a chown on /dev/console). - * - * if tty_name is non-NULL, try this one instead. - */ - -int get_console_fd(char *tty_name) -{ - int fd; - - if (tty_name) { - if (-1 == (fd = open_a_console(tty_name))) - return -1; - else - return fd; - } - - fd = open_a_console("/dev/tty"); - if (fd >= 0) - return fd; - - fd = open_a_console("/dev/tty0"); - if (fd >= 0) - return fd; - - fd = open_a_console("/dev/console"); - if (fd >= 0) - return fd; - - for (fd = 0; fd < 3; fd++) - if (is_a_console(fd)) - return fd; - - error_msg("Couldnt get a file descriptor referring to the console"); - return -1; /* total failure */ -} - - -#endif /* BB_CHVT || BB_DEALLOCVT || BB_SETKEYCODES */ - - -#if defined BB_FIND || defined BB_INSMOD -/* - * Routine to see if a text string is matched by a wildcard pattern. - * Returns TRUE if the text is matched, or FALSE if it is not matched - * or if the pattern is invalid. - * * matches zero or more characters - * ? matches a single character - * [abc] matches 'a', 'b' or 'c' - * \c quotes character c - * Adapted from code written by Ingo Wilken, and - * then taken from sash, Copyright (c) 1999 by David I. Bell - * Permission is granted to use, distribute, or modify this source, - * provided that this copyright notice remains intact. - * Permission to distribute this code under the GPL has been granted. - */ -extern int check_wildcard_match(const char *text, const char *pattern) -{ - const char *retryPat; - const char *retryText; - int ch; - int found; - int len; - - retryPat = NULL; - retryText = NULL; - - while (*text || *pattern) { - ch = *pattern++; - - switch (ch) { - case '*': - retryPat = pattern; - retryText = text; - break; - - case '[': - found = FALSE; - - while ((ch = *pattern++) != ']') { - if (ch == '\\') - ch = *pattern++; - - if (ch == '\0') - return FALSE; - - if (*text == ch) - found = TRUE; - } - len=strlen(text); - if (found == FALSE && len!=0) { - return FALSE; - } - if (found == TRUE) { - if (strlen(pattern)==0 && len==1) { - return TRUE; - } - if (len!=0) { - text++; - continue; - } - } - - /* fall into next case */ - - case '?': - if (*text++ == '\0') - return FALSE; - - break; - - case '\\': - ch = *pattern++; - - if (ch == '\0') - return FALSE; - - /* fall into next case */ - - default: - if (*text == ch) { - if (*text) - text++; - break; - } - - if (*text) { - pattern = retryPat; - text = ++retryText; - break; - } - - return FALSE; - } - - if (pattern == NULL) - return FALSE; - } - - return TRUE; -} -#endif /* BB_FIND || BB_INSMOD */ - - - - -#if defined BB_DF || defined BB_MTAB -#include <mntent.h> -/* - * Given a block device, find the mount table entry if that block device - * is mounted. - * - * Given any other file (or directory), find the mount table entry for its - * filesystem. - */ -extern struct mntent *find_mount_point(const char *name, const char *table) -{ - struct stat s; - dev_t mountDevice; - FILE *mountTable; - struct mntent *mountEntry; - - if (stat(name, &s) != 0) - return 0; - - if ((s.st_mode & S_IFMT) == S_IFBLK) - mountDevice = s.st_rdev; - else - mountDevice = s.st_dev; - - - if ((mountTable = setmntent(table, "r")) == 0) - return 0; - - while ((mountEntry = getmntent(mountTable)) != 0) { - if (strcmp(name, mountEntry->mnt_dir) == 0 - || strcmp(name, mountEntry->mnt_fsname) == 0) /* String match. */ - break; - if (stat(mountEntry->mnt_fsname, &s) == 0 && s.st_rdev == mountDevice) /* Match the device. */ - break; - if (stat(mountEntry->mnt_dir, &s) == 0 && s.st_dev == mountDevice) /* Match the directory's mount point. */ - break; - } - endmntent(mountTable); - return mountEntry; -} -#endif /* BB_DF || BB_MTAB */ - -#if defined BB_INIT || defined BB_SYSLOGD -/* try to open up the specified device */ -extern int device_open(char *device, int mode) -{ - int m, f, fd = -1; - - m = mode | O_NONBLOCK; - - /* Retry up to 5 times */ - for (f = 0; f < 5; f++) - if ((fd = open(device, m, 0600)) >= 0) - break; - if (fd < 0) - return fd; - /* Reset original flags. */ - if (m != mode) - fcntl(fd, F_SETFL, mode); - return fd; -} -#endif /* BB_INIT BB_SYSLOGD */ - - -#if defined BB_KILLALL || ( defined BB_FEATURE_LINUXRC && ( defined BB_HALT || defined BB_REBOOT || defined BB_POWEROFF )) -#ifdef BB_FEATURE_USE_DEVPS_PATCH -#include <linux/devps.h> /* For Erik's nifty devps device driver */ -#endif - -#if defined BB_FEATURE_USE_DEVPS_PATCH -/* find_pid_by_name() - * - * This finds the pid of the specified process, - * by using the /dev/ps device driver. - * - * Returns a list of all matching PIDs - */ -extern pid_t* find_pid_by_name( char* pidName) -{ - int fd, i, j; - char device[] = "/dev/ps"; - pid_t num_pids; - pid_t* pid_array = NULL; - pid_t* pidList=NULL; - - /* open device */ - fd = open(device, O_RDONLY); - if (fd < 0) - perror_msg_and_die("open failed for `%s'", device); - - /* Find out how many processes there are */ - if (ioctl (fd, DEVPS_GET_NUM_PIDS, &num_pids)<0) - perror_msg_and_die("\nDEVPS_GET_PID_LIST"); - - /* Allocate some memory -- grab a few extras just in case - * some new processes start up while we wait. The kernel will - * just ignore any extras if we give it too many, and will trunc. - * the list if we give it too few. */ - pid_array = (pid_t*) xcalloc( num_pids+10, sizeof(pid_t)); - pid_array[0] = num_pids+10; - - /* Now grab the pid list */ - if (ioctl (fd, DEVPS_GET_PID_LIST, pid_array)<0) - perror_msg_and_die("\nDEVPS_GET_PID_LIST"); - - /* Now search for a match */ - for (i=1, j=0; i<pid_array[0] ; i++) { - char* p; - struct pid_info info; - - info.pid = pid_array[i]; - if (ioctl (fd, DEVPS_GET_PID_INFO, &info)<0) - perror_msg_and_die("\nDEVPS_GET_PID_INFO"); - - /* Make sure we only match on the process name */ - p=info.command_line+1; - while ((*p != 0) && !isspace(*(p)) && (*(p-1) != '\\')) { - (p)++; - } - if (isspace(*(p))) - *p='\0'; - - if ((strstr(info.command_line, pidName) != NULL) - && (strlen(pidName) == strlen(info.command_line))) { - pidList=xrealloc( pidList, sizeof(pid_t) * (j+2)); - pidList[j++]=info.pid; - } - } - if (pidList) - pidList[j]=0; - - /* Free memory */ - free( pid_array); - - /* close device */ - if (close (fd) != 0) - perror_msg_and_die("close failed for `%s'", device); - - return pidList; -} -#else /* BB_FEATURE_USE_DEVPS_PATCH */ - -/* find_pid_by_name() - * - * This finds the pid of the specified process. - * Currently, it's implemented by rummaging through - * the proc filesystem. - * - * Returns a list of all matching PIDs - */ -extern pid_t* find_pid_by_name( char* pidName) -{ - DIR *dir; - struct dirent *next; - pid_t* pidList=NULL; - int i=0; - - dir = opendir("/proc"); - if (!dir) - perror_msg_and_die("Cannot open /proc"); - - while ((next = readdir(dir)) != NULL) { - FILE *status; - char filename[256]; - char buffer[256]; - - /* If it isn't a number, we don't want it */ - if (!isdigit(*next->d_name)) - continue; - - sprintf(filename, "/proc/%s/cmdline", next->d_name); - status = fopen(filename, "r"); - if (!status) { - continue; - } - fgets(buffer, 256, status); - fclose(status); - - if (strstr(get_last_path_component(buffer), pidName) != NULL) { - pidList=xrealloc( pidList, sizeof(pid_t) * (i+2)); - pidList[i++]=strtol(next->d_name, NULL, 0); - } - } - - if (pidList) - pidList[i]=0; - return pidList; -} -#endif /* BB_FEATURE_USE_DEVPS_PATCH */ -#endif /* BB_KILLALL || ( BB_FEATURE_LINUXRC && ( BB_HALT || BB_REBOOT || BB_POWEROFF )) */ - -#ifndef DMALLOC -/* this should really be farmed out to libbusybox.a */ -extern void *xmalloc(size_t size) -{ - void *ptr = malloc(size); - - if (!ptr) - error_msg_and_die(memory_exhausted); - return ptr; -} - -extern void *xrealloc(void *old, size_t size) -{ - void *ptr = realloc(old, size); - if (!ptr) - error_msg_and_die(memory_exhausted); - return ptr; -} - -extern void *xcalloc(size_t nmemb, size_t size) -{ - void *ptr = calloc(nmemb, size); - if (!ptr) - error_msg_and_die(memory_exhausted); - return ptr; -} -#endif - -#if defined BB_NFSMOUNT || defined BB_LS || defined BB_SH || \ - defined BB_WGET || defined BB_DPKG_DEB || defined BB_TAR || \ - defined BB_LN -# ifndef DMALLOC -extern char * xstrdup (const char *s) { - char *t; - - if (s == NULL) - return NULL; - - t = strdup (s); - - if (t == NULL) - error_msg_and_die(memory_exhausted); - - return t; -} -# endif -#endif - -#if defined BB_NFSMOUNT -extern char * xstrndup (const char *s, int n) { - char *t; - - if (s == NULL) - error_msg_and_die("xstrndup bug"); - - t = xmalloc(++n); - - return safe_strncpy(t,s,n); -} -#endif - -#if defined BB_IFCONFIG || defined BB_ROUTE || defined BB_NFSMOUNT || \ - defined BB_FEATURE_MOUNT_LOOP -/* Like strncpy but make sure the resulting string is always 0 terminated. */ -extern char * safe_strncpy(char *dst, const char *src, size_t size) -{ - dst[size-1] = '\0'; - return strncpy(dst, src, size-1); -} -#endif - -#if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT) -extern int vdprintf(int d, const char *format, va_list ap) -{ - char buf[BUF_SIZE]; - int len; - - len = vsprintf(buf, format, ap); - return write(d, buf, len); -} -#endif /* BB_SYSLOGD */ - - -#if defined BB_FEATURE_MOUNT_LOOP -#include <fcntl.h> -#include "loop.h" /* Pull in loop device support */ - -extern int del_loop(const char *device) -{ - int fd; - - if ((fd = open(device, O_RDONLY)) < 0) { - perror_msg("%s", device); - return (FALSE); - } - if (ioctl(fd, LOOP_CLR_FD, 0) < 0) { - perror_msg("ioctl: LOOP_CLR_FD"); - return (FALSE); - } - close(fd); - return (TRUE); -} - -extern int set_loop(const char *device, const char *file, int offset, - int *loopro) -{ - struct loop_info loopinfo; - int fd, ffd, mode; - - mode = *loopro ? O_RDONLY : O_RDWR; - if ((ffd = open(file, mode)) < 0 && !*loopro - && (errno != EROFS || (ffd = open(file, mode = O_RDONLY)) < 0)) { - perror_msg("%s", file); - return 1; - } - if ((fd = open(device, mode)) < 0) { - close(ffd); - perror_msg("%s", device); - return 1; - } - *loopro = (mode == O_RDONLY); - - memset(&loopinfo, 0, sizeof(loopinfo)); - safe_strncpy(loopinfo.lo_name, file, LO_NAME_SIZE); - - loopinfo.lo_offset = offset; - - loopinfo.lo_encrypt_key_size = 0; - if (ioctl(fd, LOOP_SET_FD, ffd) < 0) { - perror_msg("ioctl: LOOP_SET_FD"); - close(fd); - close(ffd); - return 1; - } - if (ioctl(fd, LOOP_SET_STATUS, &loopinfo) < 0) { - (void) ioctl(fd, LOOP_CLR_FD, 0); - perror_msg("ioctl: LOOP_SET_STATUS"); - close(fd); - close(ffd); - return 1; - } - close(fd); - close(ffd); - return 0; -} - -extern char *find_unused_loop_device(void) -{ - char dev[20]; - int i, fd; - struct stat statbuf; - struct loop_info loopinfo; - - for (i = 0; i <= 7; i++) { - sprintf(dev, "/dev/loop%d", i); - if (stat(dev, &statbuf) == 0 && S_ISBLK(statbuf.st_mode)) { - if ((fd = open(dev, O_RDONLY)) >= 0) { - if (ioctl(fd, LOOP_GET_STATUS, &loopinfo) != 0) { - if (errno == ENXIO) { /* probably free */ - close(fd); - return strdup(dev); - } - } - close(fd); - } - } - } - return NULL; -} -#endif /* BB_FEATURE_MOUNT_LOOP */ - -#if defined BB_MOUNT || defined BB_DF || ( defined BB_UMOUNT && ! defined BB_MTAB) -extern int find_real_root_device_name(char* name) -{ - DIR *dir; - struct dirent *entry; - struct stat statBuf, rootStat; - char fileName[BUFSIZ]; - - if (stat("/", &rootStat) != 0) { - error_msg("could not stat '/'"); - return( FALSE); - } - - dir = opendir("/dev"); - if (!dir) { - error_msg("could not open '/dev'"); - return( FALSE); - } - - while((entry = readdir(dir)) != NULL) { - - /* Must skip ".." since that is "/", and so we - * would get a false positive on ".." */ - if (strcmp(entry->d_name, "..") == 0) - continue; - - snprintf( fileName, strlen(name)+1, "/dev/%s", entry->d_name); - - if (stat(fileName, &statBuf) != 0) - continue; - /* Some char devices have the same dev_t as block - * devices, so make sure this is a block device */ - if (! S_ISBLK(statBuf.st_mode)) - continue; - if (statBuf.st_rdev == rootStat.st_rdev) { - strcpy(name, fileName); - return ( TRUE); - } - } - - return( FALSE); -} -#endif - - -/* get_line_from_file() - This function reads an entire line from a text file - * up to a newline. It returns a malloc'ed char * which must be stored and - * free'ed by the caller. */ -extern char *get_line_from_file(FILE *file) -{ - static const int GROWBY = 80; /* how large we will grow strings by */ - - int ch; - int idx = 0; - char *linebuf = NULL; - int linebufsz = 0; - - while (1) { - ch = fgetc(file); - if (ch == EOF) - break; - /* grow the line buffer as necessary */ - while (idx > linebufsz-2) - linebuf = xrealloc(linebuf, linebufsz += GROWBY); - linebuf[idx++] = (char)ch; - if ((char)ch == '\n') - break; - } - - if (idx == 0) - return NULL; - - linebuf[idx] = 0; - return linebuf; -} - -#if defined BB_CAT -extern void print_file(FILE *file) -{ - int c; - - while ((c = getc(file)) != EOF) - putc(c, stdout); - fclose(file); - fflush(stdout); -} - -extern int print_file_by_name(char *filename) -{ - FILE *file; - if ((file = wfopen(filename, "r")) == NULL) - return FALSE; - print_file(file); - return TRUE; -} -#endif /* BB_CAT */ - -#if defined BB_ECHO || defined BB_SH || defined BB_TR -char process_escape_sequence(char **ptr) -{ - static const char charmap[] = { - 'a', 'b', 'f', 'n', 'r', 't', 'v', '\\', 0, - '\a', '\b', '\f', '\n', '\r', '\t', '\v', '\\', '\\' }; - - const char *p; - char *q; - int num_digits; - unsigned int n; - - n = 0; - q = *ptr; - - for ( num_digits = 0 ; num_digits < 3 ; ++num_digits) { - if ((*q < '0') || (*q > '7')) { /* not a digit? */ - break; - } - n = n * 8 + (*q++ - '0'); - } - - if (num_digits == 0) { /* mnemonic escape sequence? */ - for (p=charmap ; *p ; p++) { - if (*p == *q) { - q++; - break; - } - } - n = *(p+(sizeof(charmap)/2)); - } - - /* doesn't hurt to fall through to here from mnemonic case */ - if (n > UCHAR_MAX) { /* is octal code too big for a char? */ - n /= 8; /* adjust value and */ - --q; /* back up one char */ - } - - *ptr = q; - return (char) n; -} -#endif - -#if defined BB_BASENAME || defined BB_LN || defined BB_SH || defined BB_INIT || \ - ! defined BB_FEATURE_USE_DEVPS_PATCH || defined BB_WGET -char *get_last_path_component(char *path) -{ - char *s=path+strlen(path)-1; - - /* strip trailing slashes */ - while (s != path && *s == '/') { - *s-- = '\0'; - } - - /* find last component */ - s = strrchr(path, '/'); - if (s == NULL || s[1] == '\0') - return path; - else - return s+1; -} -#endif - -#if defined BB_GREP || defined BB_SED -#include <regex.h> -void xregcomp(regex_t *preg, const char *regex, int cflags) -{ - int ret; - if ((ret = regcomp(preg, regex, cflags)) != 0) { - int errmsgsz = regerror(ret, preg, NULL, 0); - char *errmsg = xmalloc(errmsgsz); - regerror(ret, preg, errmsg, errmsgsz); - error_msg_and_die("xregcomp: %s", errmsg); - } -} -#endif - -#if defined BB_CAT || defined BB_HEAD || defined BB_WC -FILE *wfopen(const char *path, const char *mode) -{ - FILE *fp; - if ((fp = fopen(path, mode)) == NULL) { - perror_msg("%s", path); - errno = 0; - } - return fp; -} -#endif - -#if defined BB_HOSTNAME || defined BB_LOADACM || defined BB_MORE \ - || defined BB_SED || defined BB_SH || defined BB_TAR || defined BB_UNIQ \ - || defined BB_WC || defined BB_CMP || defined BB_SORT || defined BB_WGET \ - || defined BB_MOUNT || defined BB_ROUTE || defined BB_MKFS_MINIX -FILE *xfopen(const char *path, const char *mode) -{ - FILE *fp; - if ((fp = fopen(path, mode)) == NULL) - perror_msg_and_die("%s", path); - return fp; -} -#endif - -static int applet_name_compare(const void *x, const void *y) -{ - const char *name = x; - const struct BB_applet *applet = y; - - return strcmp(name, applet->name); -} - -extern size_t NUM_APPLETS; - -struct BB_applet *find_applet_by_name(const char *name) -{ - return bsearch(name, applets, NUM_APPLETS, sizeof(struct BB_applet), - applet_name_compare); -} - -void run_applet_by_name(const char *name, int argc, char **argv) -{ - /* Do a binary search to find the applet entry given the name. */ - if ((applet_using = find_applet_by_name(name)) != NULL) { - applet_name = applet_using->name; - if (argv[1] && strcmp(argv[1], "--help") == 0) - show_usage(); - exit((*(applet_using->main)) (argc, argv)); - } -} - -#if defined BB_DD || defined BB_TAIL || defined BB_STTY -unsigned long parse_number(const char *numstr, - const struct suffix_mult *suffixes) -{ - const struct suffix_mult *sm; - unsigned long int ret; - int len; - char *end; - - ret = strtoul(numstr, &end, 10); - if (numstr == end) - error_msg_and_die("invalid number `%s'", numstr); - while (end[0] != '\0') { - sm = suffixes; - while ( sm != 0 ) { - if(sm->suffix) { - len = strlen(sm->suffix); - if (strncmp(sm->suffix, end, len) == 0) { - ret *= sm->mult; - end += len; - break; - } - sm++; - - } else - sm = 0; - } - if (sm == 0) - error_msg_and_die("invalid number `%s'", numstr); - } - return ret; -} -#endif - -#if defined BB_DD || defined BB_NC || defined BB_TAIL -ssize_t safe_read(int fd, void *buf, size_t count) -{ - ssize_t n; - - do { - n = read(fd, buf, count); - } while (n < 0 && errno == EINTR); - - return n; -} -#endif - -#ifdef BB_FEATURE_HUMAN_READABLE -const char *make_human_readable_str(unsigned long val, unsigned long hr) -{ - int i=0; - static char str[10] = "\0"; - static const char strings[] = { 'k', 'M', 'G', 'T', 0 }; - unsigned long divisor = 1; - - if(val == 0) - return("0"); - if(hr) - snprintf(str, 9, "%ld", val/hr); - else { - while(val >= divisor && i <= 4) { - divisor=divisor<<10, i++; - } - divisor=divisor>>10, i--; - snprintf(str, 9, "%.1Lf%c", (long double)(val)/divisor, strings[i]); - } - return(str); -} -#endif - -#if defined(BB_GREP) || defined(BB_HOSTNAME) || defined(BB_SED) || defined(BB_TAR) || defined(BB_WGET) || defined(BB_XARGS) || defined(BB_SH) -void chomp(char *s) -{ - size_t len = strlen(s); - - if (len == 0) - return; - - if (s[len-1] == '\n') - s[len-1] = '\0'; -} -#endif - -#if defined(BB_KLOGD) || defined(BB_LOGGER) -void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg) -{ - openlog(name, 0, facility); - syslog(pri, "%s", msg); - closelog(); -} - -void syslog_msg(int facility, int pri, const char *msg) -{ - syslog_msg_with_name(applet_using->name, facility, pri, msg); -} -#endif - -#if defined(BB_SH) -void trim(char *s) -{ - /* trim trailing whitespace */ - while (isspace(s[strlen(s)-1])) - s[strlen(s)-1]='\0'; - - /* trim leading whitespace */ - memmove(s, &s[strspn(s, " \n\r\t\v")], strlen(s)); - -} -#endif - -#ifdef BB_FEATURE_RM_INTERACTIVE - #if defined (BB_CP_MV) || defined (BB_RM) -int ask_confirmation() -{ - int c = '\0'; - int ret = 0; - - while (c != '\n') { - c = getchar(); - if ( c != '\n' ) { - ret = ((c=='y')||(c=='Y')) ? 1 : 0; - } - } - return ret; -} - #endif -#endif - -/* END CODE */ -/* -Local Variables: -c-file-style: "linux" -c-basic-offset: 4 -tab-width: 4 -End: -*/ |